import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.URL;
import java.net.URLConnection;


public class HttpUtil {
	
	
	/**
	 * 接口测试示例
	 * @param args
	 */
	public static void main(String[] args) {
		  Thread thread1 = new Thread(){
			  @Override
			public void run() {
					//请求地址 和请求json数据
				  for (int i = 0; i < 140; i++) {
					String resultStr=	sendPost
						("http://192.168.7.140:8080/echoStudyMavenMuilLang1108/userInterface/addUser"
								, "{\"loginNumber\":\"luckyangyang\",\"phone\":119,\"nickName\":\"洋洋\",\"userName\":\"zhanyang\"}");
					  System.out.println("thread1请求结果返回："+resultStr);
				  }
			}
		  };
		  Thread thread2 = new Thread(){
			  @Override
			public void run() {
				  for (int i = 0; i <1; i++) {
					  //请求地址 和请求json数据
					  String resultStr=	sendPost
							  ("http://192.168.7.140:8080/echoStudyMavenMuilLang1108/userInterface/addUser"
									  , "{\"loginNumber\":\"luckyangyang\",\"phone\":119,\"nickName\":\"洋洋\",\"userName\":\"zhanyang\"}");
					  System.out.println("thread2请求结果返回："+resultStr);
					
				}
			}
		  };
		//  thread1.start();
		  thread2.start();
	}
	

	/**
     * 
     * 向指定 URL 发送POST方法的请求
     * @param url 发送请求的 URL
     * @param param 请求参数，请求参数应该是 json 的形式。
     * @return 所代表远程资源的响应结果
     */
    public static String sendPost(String url, String param) {
        PrintWriter out = null;
        BufferedReader in = null;
        String result = "";
        try {
            URL realUrl = new URL(url);
            // 打开和URL之间的连接
            URLConnection conn = realUrl.openConnection();
            // 设置通用的请求属性
            conn.setRequestProperty("accept", "*/*");
            conn.setRequestProperty("connection", "Keep-Alive");
            conn.setRequestProperty("user-agent",
                    "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:50.0) Gecko/20100101 Firefox/50.0");
            // 发送POST请求必须设置如下两行
            conn.setDoOutput(true);
            conn.setDoInput(true);
            // 获取URLConnection对象对应的输出流
            out = new PrintWriter(conn.getOutputStream());
            // 发送请求参数
            out.print(param);
            // flush输出流的缓冲
            out.flush();
            // 定义BufferedReader输入流来读取URL的响应
            in = new BufferedReader(
                    new InputStreamReader(conn.getInputStream()));
            String line;
            while ((line = in.readLine()) != null) {
                result += line;
            }
        } catch (Exception e) {
            System.out.println("发送 POST 请求出现异常！"+e);
            e.printStackTrace();
        }
        //使用finally块来关闭输出流、输入流
        finally{
            try{
                if(out!=null){
                    out.close();
                }
                if(in!=null){
                    in.close();
                }
            }
            catch(IOException ex){
                ex.printStackTrace();
            }
        }
        return result;
    }    
}
